de V. Wickens, H., Cole, D.I. (2017) Lithostratigraphy of the Kookfontein Formation (Ecca Group, Karoo Supergroup), South Africa. South African Journal of Geology, 120 (3) 447-458 doi:10.25131/gssajg.120.3.447
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Lithostratigraphy of the Kookfontein Formation (Ecca Group, Karoo Supergroup), South Africa | ||
| Journal | South African Journal of Geology | ||
| Authors | de V. Wickens, H. | Author | |
| Cole, D.I. | Author | ||
| Year | 2017 (September 1) | Volume | 120 |
| Issue | 3 | ||
| Publisher | Geological Society of South Africa | ||
| DOI | doi:10.25131/gssajg.120.3.447Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 506853 | Long-form Identifier | mindat:1:5:506853:5 |
| GUID | 0 | ||
| Full Reference | de V. Wickens, H., Cole, D.I. (2017) Lithostratigraphy of the Kookfontein Formation (Ecca Group, Karoo Supergroup), South Africa. South African Journal of Geology, 120 (3) 447-458 doi:10.25131/gssajg.120.3.447 | ||
| Plain Text | de V. Wickens, H., Cole, D.I. (2017) Lithostratigraphy of the Kookfontein Formation (Ecca Group, Karoo Supergroup), South Africa. South African Journal of Geology, 120 (3) 447-458 doi:10.25131/gssajg.120.3.447 | ||
| In | (2017, September) South African Journal of Geology Vol. 120 (3) Geological Society of South Africa | ||
| Abstract/Notes | Abstract The Permian Kookfontein Formation forms part of the upper Ecca Group in the southwestern part of the main Karoo Basin of South Africa. It occupies a stratigraphic position between the underlying Skoorsteenberg Formation and the overlying Waterford Formation, with its regional extent limited to the cut-off boundaries of the Skoorsteenberg Formation. The Kookfontein Formation has an average thickness of 200 m, coarsens upwards, and predominantly comprises dark grey shale, siltstone and thin- to thick-bedded, fine- to very fine-grained, feldspathic litharenite. Characteristic upward-coarsening and thickening successions and syn-sedimentary deformation features reflect rapid deposition and progradation of a predominantly fluvially-dominated prodelta and delta front slope environment. The upward increase in the abundance of wave–ripple marks further indicates a gradual shallowing of the depositional environment through time. The upper contact with the Waterford Formation is gradational, which indicates a transition from deposition in an unstable upper slope/shelf margin environment to a more stable shelf setting. | ||
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